6–72 345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
S3 PROTECTION CHAPTER 6: SETPOINTS
NTRL TOC1(2) RESET
Range: Instantaneous, Linear
Default: Instantaneous
The “Instantaneous” reset method is intended for applications with other relays, such as
most static relays, which set the energy capacity directly to zero when the current falls
below the reset threshold. The “Timed” reset method can be used where the relay must
coordinate with electromechanical relays.
RLY1 TRIP W1 BKR and RLY2 TRIP W2 BKR
Range: Do Not Operate, Operate
Default: Do Not Operate
The menu for the two trip output relays - RLY1 TRIP W1 BKR and RLY2 TRIP W2 BKR - is
available only if the Trip setting is selected as a function for the Neutral Timed
Overcurrent element. One or both trip output relays can be selected to operate upon
Neutral TOC operation.
NOTE:
The "RLY1 TRIP W1 BKR" and "RLY2 TRIP W2 BKR" setpoints will be displayed on the OC
menu regardless of the selected OC function. These output relays will not operate if either
Alarm or Latched Alarm is selected as an OC function, regardless of the Operate/Do Not
Operate value selected. The output relays are operational only if the OC function is
selected as Trip.
OUTPUT RELAY X
For details see Common setpoints
.
BLOCK 1/2/3
For details see Common setpoints
.
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